0 points During an uphill hike, Anya walks at a steady rate of 5 feet every 2
seconds. She writes an equation of the form y = kx to express the number
feet y that she walks in x seconds. What is the constant of proportionality
k for this relationship?
O y = 5x (k = 5)
O y = 2.5x (k = 2.5)
O y = 2x (k = 2)
O y = 10x (k = 10)